Why does Hardware in the Loop co-simulation fail to be created, when my subsystem has only one Simulink inport or outport block?
This problem occurs only if you have a subsystem with only one inport or outport. If you have any other number of inports or outports, this problem does not occur.
You can work around this problem by removing the port, or by adding another port to the subsystem.
This issue is fixed in System Generator for DSP 6.3